JP6854537B2 - 半導体構成素子製造方法および半導体構成素子 - Google Patents
半導体構成素子製造方法および半導体構成素子 Download PDFInfo
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- JP6854537B2 JP6854537B2 JP2019092630A JP2019092630A JP6854537B2 JP 6854537 B2 JP6854537 B2 JP 6854537B2 JP 2019092630 A JP2019092630 A JP 2019092630A JP 2019092630 A JP2019092630 A JP 2019092630A JP 6854537 B2 JP6854537 B2 JP 6854537B2
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- 239000004065 semiconductor Substances 0.000 title claims description 120
- 238000004519 manufacturing process Methods 0.000 title claims description 23
- 239000011265 semifinished product Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 24
- 239000000758 substrate Substances 0.000 claims description 18
- 238000002161 passivation Methods 0.000 claims description 16
- 238000005530 etching Methods 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 238000005468 ion implantation Methods 0.000 claims description 12
- 150000002500 ions Chemical class 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- -1 GaAs compound Chemical class 0.000 claims description 7
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 5
- 238000005280 amorphization Methods 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 238000002513 implantation Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 238000003631 wet chemical etching Methods 0.000 claims description 3
- 230000001133 acceleration Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000005229 chemical vapour deposition Methods 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims description 2
- 229910052732 germanium Inorganic materials 0.000 claims description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 2
- 239000001307 helium Substances 0.000 claims description 2
- 229910052734 helium Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 238000001802 infusion Methods 0.000 claims 2
- 238000000151 deposition Methods 0.000 claims 1
- 230000008021 deposition Effects 0.000 claims 1
- 238000009958 sewing Methods 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 238000001312 dry etching Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000010329 laser etching Methods 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 238000000623 plasma-assisted chemical vapour deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Description
Claims (12)
- 半導体構成素子製造方法であって、
−上面(102)および下面(104)を有する半導体半製品(100)が提供され、前記半導体半製品(100)は、相互に隣接する積層型に形成され、少なくとも100μmの高さを有する複数の半導体構成素子(BST)を備え、前記半導体構成素子(BST)は、それぞれIII−V族材料またはゲルマニウムを有する基板層(SUB)を備え、前記基板層(SUB)は、前記下面(104)にまたはその近傍に配置されており、
−前記基板層(SUB)上には、第1の導電型のそれぞれ1つの第1の半導体層(HA1)が配置され、前記第1の半導体層(HA1)には、第2の導電型の少なくとも1つの第2の半導体層(HA2)が配置されており、前記第1および第2の半導体層(HA1,HA2)は、III−V族材料を有するかまたはIII−V族材料から成り、前記第1および第2の導電型は、異なっており、
−直接隣接する2つの前記半導体構成素子(BST)の間で、前記半導体半製品(100)の前記上面(102)に、幅(B1)のスクライブフレームが形成され、
−前記半導体構成素子(BST)は、前記スクライブフレームに沿って個別化され、
−前記半導体半製品(100)の前記上面(102)には、個別化の前に、前記半導体構成素子(BST)を覆いかつ前記スクライブフレームの幅を決定する開口部を有するマスク層(M)が被着され、
−前記マスク層(M)の被着後、少なくとも部分的な非晶質化および絶縁分離のためにイオン注入が実施され、前記イオン注入は、少なくとも500keVのエネルギーでの少なくとも1つの注入ステップを含み、
−前記イオン注入後、前記マスク層(M)がエッチングにより除去され、
−前記マスク層(M)の除去後、前記半導体構成素子(BST)が個別化され、
−前記マスク層(M)の被着前に、前記半導体半製品(100)の前記上面(102)は、化学気相成長を用いて少なくとも100nmの層厚さを有する不動態化層(P)で被覆され、不動態化層(P)は、前記マスク層(M)の除去のためのエッチングストップ層として機能する、
半導体構成素子製造方法。 - 前記第1の半導体層(HA1)および前記第2の半導体層(HA2)は、それぞれGaAs化合物を含むかまたはGaAs化合物から成る、
請求項1記載の半導体構成素子製造方法。 - 前記イオン注入を用いて、前記上面(102)から前記第1の半導体層(HA1)までの間の深さ領域もしくは前記上面(102)から前記第2の半導体層(HA2)を含めて前記第2の半導体層(HA2)までの間の深さ領域もしくは前記上面(102)から前記基板層(SUB)までの間の深さ領域が、非晶質化および絶縁分離される、
請求項1または2記載の半導体構成素子製造方法。 - 水素イオンおよび/またはヘリウムイオンが注入される、
請求項1から3までのいずれか1項記載の半導体構成素子製造方法。 - 注入中のイオンの加速エネルギー(E)は、最小値(Emin)と最大値(Emax)との間で変更され、前記最小値(Emin)は、少なくとも50keVであり、前記最大値(Emax)は、最大で300MeVである、
請求項1から4までのいずれか1項記載の半導体構成素子製造方法。 - 注入中の注入量は、1010N・cm-2〜1016N・cm-2の間である、
請求項1から5までのいずれか1項記載の半導体構成素子製造方法。 - 前記マスク層(M)は、個別化の前に、湿式化学的エッチング方法によって除去される、
請求項1から6までのいずれか1項記載の半導体構成素子製造方法。 - 前記マスク層(M)の形成前に、前記上面(102)および/または前記下面(104)に金属接触面が形成される、
請求項1から7までのいずれか1項記載の半導体構成素子製造方法。 - 前記マスク層(M)の被着後、メサエッチング過程が実施される、
請求項1から8までのいずれか1項記載の半導体構成素子製造方法。 - 前記スクライブフレームは、少なくとも30μmから最大で300μmの幅(B1)にわたって非晶質化および絶縁分離される、
請求項1から9までのいずれか1項記載の半導体構成素子製造方法。 - 前記マスク層(M)に対して、金属が使用される、
請求項1から10までのいずれか1項記載の半導体構成素子製造方法。 - 前記マスク層(M)に対して、チタンまたはアルミニウムが使用される、
請求項1から11までのいずれか1項記載の半導体構成素子製造方法。
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